File XLOG 1.6 tree

1 Predicate tree_enum/2

2 Predicate tree_pairs/2

3 Predicate tree_size/2

4 Predicate tree_current/3

5 Predicate tree_set/3

6 Predicate tree_add/3

7 Predicate tree_set/4

8 Predicate tree_add/4

9 Legend

1 Predicate tree_enum/2

cross_link